Arthur bates



, A. BATES CONTROLLING DEVICE FOR POWER OPERATING MECHANISM l Filed Dec. 27, 1920 2 Sheets-Sheet 1 Dec. 15 1925` 4 1565.248

A. BATES CONTROLLING` DEVICE FOR POWER OPERATING vECHANISM Filed Deo. 27, 1920 2 Sheets-Sheet 2 Patented Dec. 15, 1925.

UNITED STATES 1,565,248 PATENT OFFICE.

ARTHUR BATES, OF LEICESTER, ENGLAND, ASSIG-NOR TO UNITED SI-IOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

V.A CORPORATION F NEW JERSEY.

CONTROLLING DEVICE FOR POWER-OPERATING MECHANISM.

1 Application filed December 27, 1920.` Serial No. 433,248.

To all lwhom t may concern:

' Be it known that I, ARTHUR BATES, a subject of the King of Great Britain, residing at Leicester, in the county of Leicester,

5 England, have invented certain new and useful Improvements in Controlling Devices for Power-Operating Mechanism; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to controlling devices for power operating mechanism of boot l l5'orshoe sole-moulding orother pressing "or,

it may be, cutting machines which it is desirable to provide with means safeguarding the operator from mutilation by parts moving under power to perform their action on a workpiece presumed to have been placed between these parts.

As the class of machines known as Twin Sole Moulding Machine is typical of such machines and has customarilybeen equipped with means as aforesaid, the invention will be hereinafter exemplified by reference to the application of a mechanism according to the invention to a machine of this class.

The objects of the invention are principally to providemeans as aforesaid of a character safer than those in vogue or hitherto proposed and rendering the machine as a whole more convenient to operate.

` A feature of the invention contemplates ithe provision ina device of the class described for controlling the operation ofv 'a machine, having mechanism controllable lso into operation after being stopped automatito throwthe machine into and out of operation and means acting automatically for controlling said mechanism to throw the machine out of operation, of means comprising two members operable by .the respective hands of the operator, which is dependent upon the release and subsequentv operation of both of said members for controlling said Vmechanism to throw the machine into operation after being/thrown out of'operation by said automatic controllingmeans. It will be apparent that with such a construction the-release and subsequent operation of both i. of the hand operable ymembers which. is.

necessary.beforethemachine can be thrown cally, insures that the operator will emply both hands -starting the machine, as

it would be impossible for the operator tc. tie down one of the members so as to employ only one hand in starting the machine. In the preferred embodiment of the invention, the construction is such that the release of either one of the hand operable members during the operation of the machine is `resultant in the immediate stoppage of the machine, so that it is necessaryfor the operator to employ both hands to marlain the machine in operation as well as tu start the machine.

Other features of the invertion which may or may not be employed in connection with the feature above referred to will be hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description and accompanying drawings.

Referring to the drawings, Figure 1 is a side elevation showing in dot-and-dash lines` the frame-work and parts of a twin sole moulding machine and in full lines the starting and stopping mechamsm; g Figure 2 is a rear elevation showing the side frames of the machine in dot-and-dash lines and part of the starting and stopping mechanism in full lines; v Figure 3 is a detail view of'the hand levers and associated parts by whichthe starting and stopping mechanism is controlled; and Figure 4 is a plain viewof the parts shown in Fig. 3.

The twin sole moulding machine illustrated in the drawings to which the invention is particularly applicable comprises two pairs of,` moulds arranged side by sidebetween end frames, the lower mould of each pair of moulds being arranged to slide vertically towards and away from its stationary upper mould on vertical guide rods fixed in the framework of the machine. Ihe lower mouldsare arranged to move al ternately towards and from their respective stationarymoulds and are actuatedl bytogglev links connected lto cranks set at 180O apart on a crank shaft `having bearingsl in the end' frames. The crank shaft is driven at a relatively slow speed by a driving shaft also mounted in bearings in the end frames.; l At the end of the driving shaft 1 is fixed a con'ed clutch member 2. A driving pulley 3 rotatably and slidingly mounted on the shaft l has a hub 41 in" which is formed a l'ns -65 p guide rod 46 of the machine. Latches ,47

peripheralgroove which receives trun.

arm fixed to the shaft 12 and at the otherv end to a hook 1G fixed in the frame 13 in a direction to move the bar 10 lengthwise (and incidentally, owing to the rotation of the arm 11, downwards) and through the lever 7 move the pulley 3 into engagement with the coned clutch member 2 to drive the machine. The bar 10 is held in its de-clutching position (as shown in Figures 1 and 2) by a roll 17 rotatably mounted on a pin 18 which is fixed in a head 19 formed on the lower end of a plunger 20. The plunger 20 is slidingly mounted in a block'21 fixed betweentwo arms 22, 23. The arms 22, 23 are pivotally mounted on the driving shaft 1 and are connected near their upper ends by a distance piece 24 bolted between the arms. The plunger 20 is pivotally connected to an arm 25 of an eccentric strap 26 which surrounds an eccentric 27 fixed on the driving shaft 1 between the arms 22, 23 and by whichthe plunger is reciprocated in the block 21. Thearms 22, 23 are swung about the shaft 1 either to move the roll 17 from under the bar 10 and allow the spring 14 to act to slide the pulley along the shaft l into engagement with the clutch member and drive the machine, or to move the roll 17 under the bar '10 so that as the plunger 20 is reciprocated it will raise the bar 10 and disengage the pulley and clutch mem-l ber.` The arm 23 is extended upwardly and at its upper end is engaged by a shoulder 28 formed on a pusher bar 29 whichis pivotally connected by a pin 30 to one arm 31 of abell-crank lever 32 pivoted at 32* to a fixed part of the machine. The other arm 33 of thebell-crank lever is pivotally con- Cil nected by a pin 34 to the lower end of a rod 35 the upper end of which lis connected by a pin 36 to one end of a connecting member 37 which is connected at its opposite end by a transverse pin 38 to the centre of an equalizing bar 39. The bar 39 is pivotally connected at each of its ends to the lower vends of links 40, 40, which are pivotally connected at their upper ends to handelevers 41,. 42 pivoted between their ends on the same stud 43 which is fixed in a casing 44, the righthand link being connected to the righthand arm of the hand-lever .41and the lefthand link 40 being connected to the lefthand arm of the hand lever 42. The casing 44 is fixed-by a pin 45 to a fixed mould i and thermac'hine stopped.

are pivoted on the hand-levers and are pro vided with notches 48 on their inner ends to normally engage stops on the casing and are held in engagement with the stops by springs one of which is shown at 49. To start the machine the operator must grasp both handles, to release the latches, and press downwardly on the hand levers. Through the links 40 and equalizing bar 39 a pull is exerted on the rod 35 thereby turning the bellcrank lever 32 on its pivot against the tension of a spring 132 and through the pusher bar 29 turning the arms 22, 23 about the shaft and withdrawing the roll from under the bar 10. The downward movement of one only of the hand-levers is not sufficient to effect ,the withdrawal of,

the roll from under the bar and the starting of the machine, it being necessary to depress fully bothl hand levers before the machine can be started and therefore both hands of the operator must be employed it being understood that the hand-levers are spacedy I well apart by the casing which encloses the hand-lever mechanism. Conversely if one only of the hand-levers is released the roll 17, just as soon as the plunger 20 brings it to its lower position, will move sufficiently under the barso that the bar will be lifted The machine is automatically stopped, even if" the hand-levers are still depressed, when one pair of moulds is full separated and the other closed at the end of the cycle. For this purpose a cam 50 having two cam portions 51, 52 is fixed on the crank shaft 53 of the machine. Resting on this cam is one end of a bar 54y the other end of which is pivoted at 55 to the bracket which supports the bracket casing 44. A link 56 pivoted at 57 on the bar 54 is slotted at 58 near its lower end to receive the end of the pusher bar V29 which has a shoulder 59 formed near its end. A stop 60 adjustably mounted on the under side of the -bar 54 limits the swinging movement of the link 56, under the infiuence of a spring 6l, to position the link for engagement with the shou der 59. As the pusher bar 29 is moved towards the rear of the machine to remove the roIl 17 from under the bar 10 the link is swung away from its stop 6() by the shoulder 59 and when the bar 54 rides off thc high partof the cam 51 the link 56 is lowered and its lower end snaps past the shoulder 59 and is positioned by the stop G() with its slotted end embracing the deeper part of the bar 29 between the two shoulders 28v and 59. As the shaft 53 rotates the cam 52 raises the link which turns the lpusher bar 29 on the pin 30 and disengages the plunger the bar is raised and the machine stopped at the end of the cycle.

Before the machine can be re-started the pusher bar 29 must move towards the front of the machine a suflcient distance( to allow the shoulder 28 to re-engage the upper endy of the arm 23 and this forward movement requires the full Arelease of both hand-levers. During the forward movement of the bar 29 the shoulder 59 re-engages the lower end of the link 56.

The crank shaft 53 is driven from the driving shaft 1 at a considerably slower speed than the driving shaft, so that the plunger 20 is reciprocated a number of times during a half revolution of the' crank shaft (i. e. during the period between successive automatic stoppages of the machine) and therefore bmachine stoppage very quickly follows release of either hand-lever.

A projection 63 is provided on the 'head 2,1 the object of which is to secure that should the brake, which Vit is usual to provide in machines of this type, fail to act and the shaft 1 continue toy rotate by its own momentum the bar l0 will rest on the projection 63 as the plunger 20 is lowered and the pulley will thereby be held out of engagement with the clutch member.

Vhile it is preferred to employ the specific construction and arrangement of parts illustrated and described, it is to be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be changed or modified without departing from the broader features of the invention.

The nature and scope of the invention having been indicated and a device embodying the several features of the invention in their` preferred form having been specilically described, what is claimed is 1. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation, means acting automatically for controlling said mechanism to throw the machine out of operation, two normally locked members operable by the respective hands of the operator, and means dependent upon the release and subsequent operation of both of said members for controlling said mechanism to throw the machine into operation after being thrown out of operation by said automatic controlling means.

2. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation means for controlling said lmechanism to throw the .machine out of operation, and means acting independently thereof comprising two normally locked members operable by the respective hands of the oper- 4' y able by the respective hands ofthe operator, and means acting upon movement of both of said members to control said mechanism to throw the machine into operation and upon the release of either one of said members by one of the hands ofthe operator tocontrol said mechanism immediately to throw the machine out of operation.

4. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation, means acting automatically for controlling said mechanism to throw the machine out of operation, two members operable by the respective hands of the operator, and means operated by the combined movements of both of said members either simultaneously or separat-ely as desired to control said mechanism to throw the machine into operation and keep it in operation in that cycle only until one of said members has a contrary movement.

5. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation, two members operable by the respective hands of the operator, means dependent upon the combined operations of both of said members for controlling said mechanism to throw the machine into operation, and means acting automatically to control said mechanism to throw the machine out of operation and to disconnect said mechanism and said members, irrespective of con- 'C tinued operation of said members by the operator. y

6. A device of the class describedfor controlling the operation of a machine having,

in combination, mechanism controllable to throw the machine into and out of operation, two members operable by the respective hands of the operator, means dependent upon the operation of both of said members forl controlling said mechanism to throw the machine into operation, and means acting independently of said members for control,- ling said mechanism to throw the machine out of operation.

7. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of opera-v hands of the operator to control said mechanism to throw the machine out of operation, and means acting automatically after a period of operation of the machine to control said mechanism to throw the machine out of operation.

8. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation, two members operable by the respective hands of the operator, and means acting upon movement of both of said members to a particular position to control said mechanism to throw the machine into operation and dependent upon both of. said members being retained in such position by the em-.

ployment of both hands of the operator to maintain the machine in operation.

9. A device of the class described :tor controlling theoperation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation, and means comprising devices requiring the use of both hands of the operator lto control said mechanism to throw the machine into operation, and upon the release of one of said devices by the operator to control lsaid mechanism immediately to throw the machine out of operation.

10. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation, two levers capable of being operated by the respective hands of the operator, means comprising two members associated with said levers respectively for locking said levers in position and requiring to be moved in one direction to release said levers,

and means dependent upon movement ofsaid levers infthe opposite direction to said movement of said locking members to control said mechanism to throw the machine into operation.

11. A deviccof the class described for controlling the operation of a machine having, in combination, mechanism comprising a vibrating` member movable 1n a direction transverse of the path of thevibration 12. A device of the class described for controlling the operation of a machine having, in combination, mechanism controllable to throw the machine into and out of operation, means acting automatically for controlling said mechanism to throw the machine out of operation, two members operable by the respective hands of the operator, and means dependent upony the release and subsequent operation of both of said members for controlling said mechanism to throw the machine into operation after being thrown out of operation by said automatic controlling means, and upon the release of either one of said members to control said mechanism to`throw the machine out of operation.

13. A device of the class described for controlling the operation of a machine having, in combination, a driving clutch member, a driven clutch member, mechanism for shifting the clutch members vinto and out of engagement, means for actuating said mechanism to shift the clutch members into engagement, power operated means for actuating said mechanism to shift the clutch members out of engagement comprising a reciprocating plunger, a carrier for the plunger movable ifn one direction to connect said lunger with said mechanism to actuate said) mechanism to shift the clutch members out of engagement and movable in the` opposite direction to disconnect said plunger and 'said mechanism, a spring Jfor moving the carrier in the direction to connect said plunger with said mechanism, two members operable by the respective hands of the operator, means dependent upon movement of both of said members to move said carrier im the direction to disconnect said vplunger and said mechanism, and upon the release of one of said members to permit said spring to move the carrier in the direction to connect said plunger-` with said mechanism, a cam, and means actuated by the cam to disconnect said hand operable members and said carrier to permit said spring to move the carrier in the direction to connect said plunger with said mechanism.

,14. A device of the class described for controlling the operation of a machine having, in combination, mechanism for throwing themachiine into and' out of operation, means for actuating said mechanism to throw the machine into operation, power'opl erated means for actuating said mechanism to throw the machine out of operation comprising a reciprocating'plunger, a carrier for the plunger movable in one directionA to connect said plunger with said mechanism to actuate said mechanism to throw the machine out of operation, and movable in the opposite direction to disconnect said plunger and Said mechanism, a spring for moving the carrier in the directio-n to connect said plunger with said mechanism, two members operable by the respective hands of. the operator, means depending upon movement of both of said members to move said carrier in the direction to disconnectJ said plunger and Said mechanism, arnd upon the release of one of said members to permit said spring to move the carrier in the direction to connect said plunger with said mechanism, and power operated means for disconnecting said hand operable members and said carrier to permit said spring to move the carrier in the direction to connect said plunger with said mechanism.

15. A device of the class described for controlling the operation of a machine having, in combination, mechanism for throwing the machine into-and out of operation, a spring for actuating said mechanism to throw the machine into operation, power operated means for actuating said mechanism to throw the machine out of operation comprising a reciprocating plunger, a carrier for the plunger movable in yone direction to connect said plunger with said mechanism to actuate said mechanism to throw the machine out of operation, and movable in the opposite direction to said mechanism.

16. A device of the class described for controlling the operation of a machine having, in combination, a driving clutch member, a driven clutch member, mechanism for yieldingly engaging the clutch members and for positively disengaging the clutch members, two members operable by the respective hands of the operator, and means acting upon movement of both of said members to control said mechanism to shift the clutch members into engagement, and upon the release of one of said members to control said mechanism to shift the clutch members out of engagement.

ARTHUR BATES. 

